Brown Stuff

backdoc33

New Member
:help: I have a 55 gallon reef tank going and I am noticing some brown stuff on the back of the tank and on some of the tubing. Can anybody tell me what it might be? Is it bad? What should I do?
 

clarkiiclo

Active Member
No, that is normal. If you dont like looking at them you can gently scrub them off with a new toothbrush.
I also used a piece of poly filter in my filtration to catch free floating stuff.
They lasted about 2 weeks.
 

shawnhardy

Member
Yes, diatoms they are. They will go away as your tank matures. I remember when I first started my tank and I was teh same way. Eventually something else will grow and deprive all teh diatoms of their nutrients. In my case, coralline algae started growing and now I hardly ever need to clean the galss because the coralline is keeping everything else from growing.
 
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